Step4: Error Debugging

• "xxx is not declared in this scope "

Something is not declard, Maybe you do not put the libraris the right location:...\arduino\libraries, If you can sure that you have put library in the right locacation, please try to close Arduino IDE and reopen.

• "COM error"

Try re-plugging the Crowduino from computer, and select the right COM port

• "Donwload error "

Try to re-select the Arduino board, for Crowduino328, please selec the Arduino Duemilanonve w/Atmega328.